We are taught that a business letter sho

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问题选择题

We are taught that a business letter should be written in a formal style __ in a personal one.

A．rather than

B．better than

C．more than

D．less than

答案

答案：A

选择题

When I met him the other day, it was the first time we ____ each other since we were at school. [ ]

A. saw

B. had seen

C. were seeing

D. have seen

多项选择题

单桩竖向抗压极限承载力由以下两个因素决定（）

A．桩本身的材料强度

B．桩本身的刚度

C．地基土的强度

D．桩本身的长度